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首页> 外文期刊>Marine Environmental Research >Changes in subtidal assemblages in a scenario of warming: Proliferations of ephemeral benthic algae in the Canary Islands (eastern Atlantic Ocean)
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Changes in subtidal assemblages in a scenario of warming: Proliferations of ephemeral benthic algae in the Canary Islands (eastern Atlantic Ocean)

机译：在变暖情况下潮下带组合的变化：加那利群岛（东大西洋）短暂海底藻类的扩散

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摘要

The present work analysed the main changes in subtidal algal assemblages in the last decade in an oceanic archipelago (Canary Islands - eastern Atlantic Ocean). Changes result from increases in cover of ephemeral benthic algae, such as the non-native chlorophyte Pseudotetraspora marina and the native cyanophytes Blennothrix lyngbyacea, Schizothrix calcicola and Schizothrix mexicana. Ephemeral algae overgrow subtidal assemblages which are extensively dominated by Lobophora variegata, but competitively do not exclude other species. Increases in the abundance of species coincided with a warming of about 2 ℃ in surface seawater temperature (SST) linked to the weakening of the Cold Canary Current and the Northwestern African upwelling. Shifts in the distribution and cover of ephemeral species follow the SST gradient from warmer waters in the western islands to colder waters in the eastern ones. While in the warmest western islands, species have spread quickly colonizing all type of substrates in just a few years (2005-2008), the occurrence of ephemerals towards the coldest eastern islands is yet inconspicuous.
机译：目前的工作分析了海洋群岛（加那利群岛-大西洋东部）近十年来潮下藻类组合的主要变化。变化的原因是临时性底栖藻类（例如非天然绿藻类假单孢藻）和天然蓝藻Blennothrix lyngbyacea，Schizothrix calcicola和Schizothrix mexicana的覆盖增加。暂时的藻类过度生长于潮下带，这些藻类广泛地由杂色罗布泊（Lobophora variegata）主导，但竞争性地不排除其他物种。物种丰富度的增加与地表海水温度（SST）升高约2℃相吻合，这与冷金丝雀流和西北非洲上升趋势的减弱有关。短暂物种的分布和覆盖范围的变化遵循SST梯度，从西部岛屿的温暖水域到东部岛屿的冷水域。尽管在最温暖的西部岛屿中，物种在短短几年内（2005-2008年）迅速蔓延到所有类型的底物，但对于最寒冷的东部岛屿而言，短暂的出现仍然不明显。

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  • 来源
    《Marine Environmental Research》 |2012年第6期|p.120-128|共9页
  • 作者

    Carlos Sangil; Marta Sanson; Julio Afonso-Carrillo; Rogelio Herrera; Adriana Rodriguez; Laura Martin-Garda; Tania Diaz-Villa;

  • 作者单位

    Area de Biodiversidad, Reserva Mundial de la Biosfera La Palma, Av. Maritima, 3, 38700 Santa Cruz de La Palma, Canary Islands, Spain,Departamento de Biologia Vegetal (Botanica), Universidad de La Laguna, 38071 La Laguna, Tenerife, Canary Islands, Spain,Departamento de Biologia Vegetal (Botanica), Universidad de La Laguna, 38071 La Laguna, Tenerife, Canary Islands, Spain;

    Departamento de Biologia Vegetal (Botanica), Universidad de La Laguna, 38071 La Laguna, Tenerife, Canary Islands, Spain;

    Departamento de Biologia Vegetal (Botanica), Universidad de La Laguna, 38071 La Laguna, Tenerife, Canary Islands, Spain;

    Servicio de Ordenacion Territorial, Viceconsejeria de Ordenacion del Territorio, Gobierno de Canarias, c/ Agustin Millares Carlo, 18, Edificio de Servicios Multiples Ⅱ, 35071 Las Palmas de Gran Canaria, Canary Islands, Spain;

    Departamento de Biologia Animal (Ciencias Marinas), Universidad de La Laguna, 38206 La Laguna, Tenerife, Canary Islands, Spain;

    Area de Biodiversidad, Reserva Mundial de la Biosfera La Palma, Av. Maritima, 3, 38700 Santa Cruz de La Palma, Canary Islands, Spain;

    Departamento de Biologia Vegetal (Botanica), Universidad de La Laguna, 38071 La Laguna, Tenerife, Canary Islands, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    ecosystem changes; subtidal algal assemblages; ephemeral species; pseudotetraspora marina; SST warming; canary islands;

    机译：生态系统变化;潮下藻类组合;短暂的物种;假四孢子藻SST升温;加那利群岛;

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